title: Calcification of radiolucent gall stones during treatment with ursodeoxycholic acid.
mesh_terms: D000328:Adult; D002114:Calcinosis / Q000139:chemically induced*; D002769:Cholelithiasis / Q000000981:diagnostic imaging* / Q000188:drug therapy; D003840:Deoxycholic Acid / Q000031:analogs & derivatives*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014580:Ursodeoxycholic Acid / Q000009:adverse effects*
chemical_list: D003840:Deoxycholic Acid; D014580:Ursodeoxycholic Acid